Patents by Inventor Nobuhiro Iwase
Nobuhiro Iwase has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20100244685Abstract: A plasma display panel having a partition wall structure with improved exhaust conductance and which can forestall drops in emission efficiency is provided. A plasma display panel having a discharge gas sealed in a space between a pair of opposing substrates, a plurality of display electrodes extending in a transversal direction, address electrodes A extending in a longitudinal direction and intersecting the display electrodes 40, and a lattice-like partition wall 29 having longitudinal partition walls 29V and transversal partition walls 29H, and defining unit light-emitting regions C on one of the substrates.Type: ApplicationFiled: June 27, 2006Publication date: September 30, 2010Applicant: HITACHI PLASMA DISPLAY LIMITEDInventors: Soichi Watari, Koji Ohira, Nobuhiro Iwase
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Publication number: 20080150429Abstract: A plasma display panel includes an insulation layer for covering a plurality of row electrodes arranged on a first substrate. A surface of the insulation layer is an uneven surface of protrusions corresponding to irregularities of a foundation surface. At least a surface layer portion of the insulation layer is made up of crystals of an insulation material. A partition, comprising horizontal and vertical intersecting walls defining discharge cells therebetween and arranged on a second substrate, has face surfaces of the horizontal walls aligned with and opposed to respective protrusions of the insulation layer, the horizontal wall face surfaces being of a width greater than a width of respective protrusions and extending from corresponding edges of the respective protrusions to respective discharge cells, defined thereby, by a distance of at least a height the respective protrusions.Type: ApplicationFiled: February 21, 2008Publication date: June 26, 2008Applicant: FUJITSU HITACHI PLASMA DISPLAYInventor: Nobuhiro IWASE
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Patent number: 7342358Abstract: A plasma display panel includes an insulation layer for covering a plurality of row electrodes arranged on a first substrate. A surface of the insulation layer is an uneven surface that reflects irregularities of a foundation surface. At least a surface layer portion of the insulation layer is made up of crystals of an insulation material. A top surface of a partition that is arranged on a second substrate and abuts against the insulation layer is formed to extend with respect to a projection of the insulation layer that abuts against the partition at a distance greater than a height of the projection.Type: GrantFiled: February 14, 2006Date of Patent: March 11, 2008Assignee: Fujitsu Hitachi Plasma Display LimitedInventor: Nobuhiro Iwase
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Publication number: 20080054788Abstract: In a display panel having electrode wires connected to drive units, the electrode wires form N number of electrode wire groups, each of which is composed of M number of successive adjacent electrode wires, and the display panel has first and second connecting terminal groups, arranged along first and second sides of the panel respectively and each having M terminals. K number of electrode wire groups out of the N number of electrode wire groups (K<N) are connected via leading lines to the first connecting terminal groups respectively, N?K number of electrode wire groups out of the N number of electrode wire groups are connected via the leading lines to the second connecting terminal groups respectively, and the K number of electrode wire groups and the N?K number of electrode wire groups are arranged alternately or in alternate sets of a plurality of groups.Type: ApplicationFiled: September 5, 2007Publication date: March 6, 2008Inventors: Nobuhiro Iwase, Yasuhiko Kunii, Koji Ohira, Yoshikazu Kanazawa, Taizo Ohno
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Publication number: 20070126360Abstract: A small-sized full HD plasma display device with high luminance is to be provided. The plasma display device according to the present invention comprises: first and second substrates; first and second electrodes formed on the first substrate so as to generate sustain discharge on the first substrate; and third electrodes formed on the second substrate so as to generate address discharge with the second electrodes, wherein the first to third electrodes form one pixel including cells of R, G and B, display of 1920×1080 pixels can be made, a length of a diagonal line of a display screen is shorter than 132 cm, an interlace drive is used, almost half of the third electrodes are connected to a drive circuit from an upper side of a panel, and the rest of the third electrodes are connected to the drive circuit from a lower side of the panel.Type: ApplicationFiled: December 6, 2006Publication date: June 7, 2007Inventors: Yasunobu Hashimoto, Nobuhiro Iwase, Tomokatsu Kishi, Masayuki Shibata
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Publication number: 20060220557Abstract: A plasma display panel includes a pair of substrates, a dielectric layer, a protective film, and a discharge gas. The pair of substrates are disposed in an opposite relation with a discharge space defined therebetween. The dielectric layer is formed on at least one of the substrates so that the dielectric layer covers a plurality of electrodes formed on said at least one of the substrates. The protective film is formed on the dielectric layer so that the protective film covers the dielectric layer. The discharge gas is filled in the discharge space and contains xenon. The dielectric layer is formed of a material containing silicon oxide. The protective film is formed of a material that has little aptitude to pass ultraviolet light generated by an electric discharge between the electrodes.Type: ApplicationFiled: March 27, 2006Publication date: October 5, 2006Applicant: Fujitsu Hitachi Plasma Display LimitedInventors: Koji Sugawa, Nobuhiro Iwase, Tetsurou Kawakita
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Publication number: 20060192488Abstract: A plasma display panel includes an insulation layer for covering a plurality of row electrodes arranged on a first substrate. A surface of the insulation layer is an uneven surface that reflects irregularities of a foundation surface. At least a surface layer portion of the insulation layer is made up of crystals of an insulation material. A top surface of a partition that is arranged on a second substrate and abuts against the insulation layer is formed to extend with respect to a projection of the insulation layer that abuts against the partition at a distance greater than a height of the projection.Type: ApplicationFiled: February 14, 2006Publication date: August 31, 2006Applicant: FUJITSU HITACHI PLASMA DISPLAY LIMITEDInventor: Nobuhiro Iwase
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Publication number: 20060145610Abstract: A panel structure is provided in which a dielectric layer having no voids thereinside can be formed by a vapor deposition method. A layered film of plural metal layers that constitute an electrode covered with a dielectric layer is formed to have a stepped shape in which a width is smaller from a bottom layer to an uppermost layer for each layer in order. The stepped shape is formed by projecting an edge portion of a lower layer by design compared to an upper layer.Type: ApplicationFiled: November 1, 2005Publication date: July 6, 2006Applicant: FUJITSU HITACHI PLASMA DISPLAY LIMITEDInventors: Syuma Eifuku, Toshiyuki Nanto, Nobuhiro Iwase, Tetsurou Kawakita
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Patent number: 6522070Abstract: A plasma display panel comprising a pair of substrates defining a discharge space, a plurality of display electrodes for surface discharge between adjacent electrodes formed on one of the substrates, an insulator layer formed thereon, a plurality of address electrodes crossing the display electrodes formed on the other substrate and belt-shaped barrier ribs formed between the address electrodes, wherein a discharge electric field controller is formed under the insulator layer and a discharge electric field increasing member is formed in an elongated discharge space formed between adjacent barrier ribs along the direction of the address electrodes.Type: GrantFiled: May 3, 2000Date of Patent: February 18, 2003Assignee: Fujitsu LimitedInventors: Akira Nakazawa, Nobuhiro Iwase, Hitoshi Yamada, Noriyuki Awaji
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Patent number: 6242864Abstract: A plasma display panel of a matrix display type, having a first electrode and a second electrode which constitute a main electrode pair, the first electrode and the second electrode being covered with an insulating layer against a discharge gas, wherein the insulating layer comprises a magnesium oxide film formed at least as a surface layer thereof which is in contact with the discharge gas, the magnesium oxide film having an impedance in the range of 230 to 330 k&OHgr;/cm2 at a frequency of 100 Hz.Type: GrantFiled: November 4, 1997Date of Patent: June 5, 2001Assignee: Fujitsu LimitedInventors: Hiroyuki Nakahara, Takashi Katayama, Kazuhide Iwasaki, Manabu Ishimoto, Nobuhiro Iwase, Souichirou Hidaka, Akihiro Mochizuki
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Patent number: 6129827Abstract: A process for forming a fluorescent layer on an electrode disposed on a substrate for display panel includes the steps of: placing an opening of a housing section for housing a fluorescent paste opposite to the electrode on the substrate; and applying a voltage between the electrode on the substrate and a control electrode disposed inside the housing section in this state, whereby the fluorescent paste inside the housing section is exactly applied onto the electrode via the opening. Also, an apparatus for forming a fluorescent layer on a substrate for display panel using the process is disclosed.Type: GrantFiled: November 3, 1997Date of Patent: October 10, 2000Assignee: Fujitsu LimitedInventors: Akira Nakazawa, Nobuhiro Iwase, Keiichi Betsui, Akihiro Mochizuki
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Patent number: 5952036Abstract: A fluorescent layer formation process which comprises dispersing particles of a fluorescent substance and particles of a (meth)acrylic resin as a binder or particles of the fluorescent substance coated with the (meth)acrylic resin in a medium incapable of dissolving the resin therein to prepare a fluorescent paste; applying the fluorescent paste on a fluorescent layer formation surface to form a paste layer; and baking the paste layer at such a temperature that the resin is substantially decomposed or burnt out, thereby to form a fluorescent layer.Type: GrantFiled: January 30, 1997Date of Patent: September 14, 1999Assignee: Fujitsu LimitedInventors: Shinji Tadaki, Nobuhiro Iwase, Souichiro Hidaka, Akihiro Mochizuki
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Patent number: 5639399Abstract: A novel stimulable phosphor having a high sensitivity to a semiconductor laser as a stimulating light is disclosed, and is represented by the formula:{(M.sup.II X.sup.1.sub.2-2u X.sup.2.sub.2u).sub.1-x-y (M.sup.I X.sup.1.sub.1-v X.sup.2.sub.v).sub.x (M.sup.III X.sup.1.sub.3-3w X.sup.2.sub.3w).sub.y }.sub.1-a A.sub.a :bEu.sup.2+where M.sup.II represents at least one divalent metal such as Ba, Be, Mg or Ca; M.sup.I represents at least one monovalent metal such as Li, Na, K, Rb or Cs; M.sup.II represents at least one divalent metal such as Ba, Be, Mg or Ca; M.sup.III represents at least one trivalent metal such as Sc, La, Y, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Al, Ga, In or Tl; X.sup.1 represents Br or Cl; X.sup.2 represents at least one halogen atom that is different from X.sup.1 ; A represents at least one metal oxide such as BeO, MgO, CaO, SrO, BaO, Al.sub.2 O.sub.3, Y.sub.2 O.sub.3, La.sub.2 O.sub.3, In.sub.2 O.sub.3, Ga.sub.2 O.sub.3, SiO.sub.2, TiO.sub.2, ZrO.sub.2, GeO.sub.2, SnO.sub.2, Nb.Type: GrantFiled: September 20, 1995Date of Patent: June 17, 1997Assignee: Fujitsu LimitedInventors: Nobuhiro Iwase, Hiroshi Kano, Shinji Tadaki, Masami Hasegawa, Nagaaki Koshino
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Patent number: 5543080Abstract: A method for forming an X-ray image. The method involves the use of an X-ray transforming sheet which includes a novel stimulable phosphor on a substrate. The phosphor has a high sensitivity to a semiconductor laser as a stimulating light and is represented by the formula:{(M.sup.II X.sup.1.sub.2-2u X.sup.2.sub.2u).sub.1-x-y (M.sup.I X.sup.1.sub.1-v X.sup.2.sub.v).sub.x (M.sup.III X.sup.1.sub.3-3w X.sup.2.sub.3w).sub.y }.sub.1-a A.sub.a :bEu.sup.2+where M.sup.II represents at least one divalent metal such as Ba, Be, Mg or Ca; M.sup.1 represents at least one monovalent metal such as Li, Na, K, Rb or Cs; M.sup.III represents at least one trivalent metal such as Sc, La, Y, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Al, Ga, In or Tl; X.sup.1 represents Br or Cl; X.sup.2 represents at least one halogen atom that is different from X.sup.1 ; A represents at least one metal oxide such as BeO, MgO, CaO, SrO, BaO, ZnO, Al.sub.2 O.sub.3, Y.sub.2 O.sub.3, La.sub.2 O.sub.3, In.sub.2 O.sub.3, Ga.sub.2 O.sub.3, SiO.Type: GrantFiled: January 25, 1995Date of Patent: August 6, 1996Assignee: Fujitsu LimitedInventors: Nobuhiro Iwase, Hiroshi Kano, Shinji Tadaki, Masami Hasegawa, Nagaaki Koshino
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Patent number: 5444266Abstract: A digital X-ray apparatus forms a latent image of an object on a photostimulable phosphor plate as an energy distribution pattern using X-ray energy and reads the latent image using an excitation light beam. A plate, of a material which does not transmit the excitation light beam, has holes formed therein with photostimulable phosphor positioned in the holes, the photostimulable phosphor emitting a fluorescent light when irradiated by the excitation light beam, the emitted light beam gathered and a corresponding signal produced. The excitation light beam reflected from the photostimulable phosphor plate is also gathered and a signal responsive thereto also is produced. A method of production by stacking and bonding plural metal sheets having appropriate patterns of holes therein with the photostimulable phosphor and a transparent protection film layer thereon provides the structure of the photostimulable phosphor plate.Type: GrantFiled: June 2, 1993Date of Patent: August 22, 1995Assignee: Fujitsu LimitedInventors: Shiro Takeda, Fumihiro Namiki, Yuuichi Sugiyama, Nobuhiro Iwase, Shinji Tadaki, Nagaaki Koshino
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Patent number: 5012096Abstract: In a digital X-ray apparatus for exposing an X-ray transmitted through an object onto a photostimulable phosphor plate, for scanning the photostimulable phosphor plate by an excitation beam, and for obtaining an X-ray image, the digital X-ray apparatus includes a switch unit connected to a storage unit and switching between a standard photographing mode and an actual photographing mode; a correction coefficient conversion unit converting the X-ray image data to an image data having a standardized lightness; a first storage unit storing an initial correction coefficient after standardization in the correction coefficient conversion unit; a second storage unit storing a correction coefficient after standardization in the correction coefficient conversion unit; a detection unit comparing a value of the correction coefficient from the second storage unit with a value of the initial correction coefficient from the first storage unit, and detecting whether or not a difference between the value of the correction coeType: GrantFiled: May 18, 1990Date of Patent: April 30, 1991Assignee: Fujitsu LimitedInventors: Shiro Takeda, Fumihiro Namiki, Yuuichi Sugiyama, Nobuhiro Iwase, Shinji Tadaki, Nagaaki Koshino